Hydraulic plate closing and riveting device.



No. 656,80l. Patented Aug. 28, I900. A

J. H. BATCHER.

HYDRAULIC PLATE CLOSING AND RIVETING DEVICE.

(Application filed Feb. 16, 1900.)

4 Shasta-Sheet I.

(No Model.)

Nu. 656,80l. Patented Aug. 28,1900. J. H. BATCHER'.

HYDRAULIC PLATE CLOSING AND RIVETING DEVICE.

' A lic emn filed Feb. 16, 1900. (No Model.) 4 Sheets-Sheet 2.

E a W: mw%f%i 40/ No. 656,80I. Patented Aug. 28, I900. J. H. BATCHER.

HYDRAULIC PLATE CLOSING AND BIVETING DEVICE.

I (Application filed Feb. 16, 1900.)

(No Model.) 4 $heeta$heet 3.

Fig. 4. 7

No. 656,80I. Patented Aug. 28, I900.,

J. H. BATCHER.

HYDRAULIC PLATE SLOSING AND RIVETING DEVICE.

(Application filed Feb. 16, 1900.

(No Model.) 4 Sheets-Sheet 4.

345 NORRIS PETERS co. PHpTG-LITNO. \wsumm'uN, o. c

llrrnn E PATENT OFFIc.

JOHN II. BATOHER, OF SACRAMENTO, CALIFORNIA, ASSIGNOR TO SOI-IAW', INGRAM, BATCI-IER 6; GO, OF SAME PLACE.

HYDRAULHC PLATE CLOSING AND RIVETING DEVICE.

SPECIFICATION forming part of Letters Patent No. 656,801, dated August 28, 1900.

Application filed February 16, 1900- Serial No. 55523. (No model.)

T0 whom it may concern:

Be it known that 1, JOHN H. BATOHER, a citizen of the United States, residing at Sacramento, county of Sacramento, State of California, have invented an Improvement in Hydraulic Plate Closing and Riveting Devices; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to an apparatus which is designed for riveting pipe-sections together to form convenient lengths for transportation and subsequent use.

My invention consists in a means for closing the plates together and retaining them in close contact while the rivet is being inserted and headed and in the application of hydraulic pressure for performing this work.

My invention also comprises details of construction which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is a longitudinal elevation of my invention. Fig. 2 is a plan of the same. Fig. 3 is a front elevation of the same. Fig. 4:is an enlarged transverse section through the cylinder 2 and the head of the mandrel. Fig. 5 shows a method of conveying the riveted pipes away from the apparatus. Fig. 6 shows a modification of the same. Fig. 7 is a longitudinal elevation of the same.

As shown in the present illustration of my invention, A is the mandrel, which is preferably made of hammered steel, and B is the upper part or section, which is made of steel casting or like material. The two parts A and B are strongly bolted together at the rear, and they diverge from each other toward the front, so as to leave a sufficient space between them for the introduction of pipe-sections, or joints, as they are termed, and the operation of the riveting apparatus at the outer ends.

The pipe-sections, or joints, as they are called, are made in lengths depending on the size of the pipe to be made and the length and width of the metal sheets which are available for making the pipe. The mandrel and the upper section are of suflicient length, so that the pipe may be slipped over the mandrel and bring its outer end in line with the riveting devices, the pipe having been previously bent into form, and with the meeting edges overlapped and riveted, so that it is cylindrical or of the requiredshape transversely. These sections are united to form desirable lengths for handling and future use by inserting the end of one section into the end of the next adjacent one, and holes are made through these overlapping ends, through which rivets are driven and headed, thus making tight joints at these points. It is the object of my present invention to improve the making of these joints by closing the plates together by a considerable pressure, so that when the rivets are passed through the coincident holes in the meeting ends of the pipe-sections they will when headed up hold the sections firmly together, and by reason of the sections being first pressed into close contact there is no danger of expanding the rivet intermediate between the plates, as occurs when the plates are not properly held together.

2 is the cylinder, within which operates the ram or plunger 3, and from this plunger the stem or plunger-rod 5 passes down through the lower part of the cylinder and carries the rivet-driving tool 6. This tool is concaved to fit the usual shape of rivet heads as they are formed, and pressure being applied through the plunger to the riveting-tool the latter is forced downward to drive the rivet beneath it. Water to operate this plunger is introduced to the upper end of the cylinder through pipe 7 from the valve-chamber 8, within which is a valve operated by a hand lever 9 within easy reach, and this moves the valve in the chamberS to admit water through a pipe 10, extending along the upper part of the section B. This pipe 10 connects through suitable couplings with a jointed supply-pipe 11, which brings the water under pressure from the accumulator or other source. At the point where the water from pipe 11 is delivered into the pipe 10 is a T or coupling 12, one branch of which receivesthe Water conducted from 11. Through another branch water is delivered into a pipe 10 to operate the hydraulic ram of the riveter, andthrough the third branch water passes through the pipe 13 along the lower part or mandrel A. This Water enters a chamber or chambers in a head 14: at the outer end of the mandrel A. Within this chamber are one or more plungers 15, moving in correspondingly-shaped Vertically-disposed cylinders, and in the present case I have shown two of these cylinders, and each plunger has a stem 16, extending upwardly through the upper part of the head, and the upper ends of these stems are fixed in a head 17.

Upon the top of the head 14: is fitted the stem 18, in the upper end of which is the con? cave, which is designed to receive the lower end of the rivet and to form the head thereon in conjunction with the ram or pressure device operating from above, as previously described. This stem 18 is freely slidable within a sleeve 19, which rests upon the top of the ring or head 17 and which is normally pushed up above the upper end of the heading-tool 18 by water-pressure below the plungers 15. This pressure is furnished through the pipe 13, previously described, which is a branch receiving water from the accumulator and conducting it along the mandrel, delivering it into the chambers of the plungers 15, so that the upper pressure of the water upon these plungers forces the ring or head 17 and'the sleeve 19 upwardly, as before stated, above the end of the rivet-head former 18.

The size of the plungers 15 may be varied to suit conditions. I have found that with a ram-pressure of about thirty-five tons a pressure upon these plungers of approximately four tons is sufficient.

The overlapping ends of the tubes which are to be riveted, being already perforated with the holes, will stand in line beneath the driving-head 6 of the riveter, and the inner periphery of the inner tube will rest upon the top of the sleeve 19. When the apparatus is set in operation, by moving the lever 9 to open the valve and allow water-pressure to enter the cylinder 2 it acts upon the plunger 3, and thus forces the head 6 downward, pushing the rivet 20 through the coincident holes of the two pipes, and as the pressure upon the parts continues the first action will be to close the two surfaces of the pipe-plates together with a pressure equal to that exerted by the plungers 15, which may be as much as four tons, thus insuring the absolute closing of the plates together; but as the pressure from the ram above greatly exceeds that of the upward pressure from below the plungers 15 will be forced down by the pressure upon the top of the sleeve 19 until the inner end of the rivet enters the cup in the upper end of the-head-former 18. A continued pressure will then upset this end of the rivet and form a head upon it which clamps the two plates firmly together. The pressure upon the ram being released and the water allowed to escape, the ram-plunger is raised and the pipe is turned to bring another hole into line with the riveting devices, and the same process is repeated. By this great but yielding pressure from below the plates of which the pipes .are formed. are forced closely together before the rivet is headed, the pressure being sufficient to close plates of any thickness which are liable to be used. The movement of the valve in the chamber 8 to cut off the pressure upon the ram through the pipe 10 simultaneously opens an exhaust or discharge passage through the pipe 2l,-and in order to insure the rising of the riveting-tool and the ram-plunger I have shown a branch pipe 22, leading from pipe 10 and opening into the lower part of the cylinder 2, in which there is a cylinder 23, formed at one side of the opening through which the shank or stem 5 passes. A plunger 24 within this side cylinderis moved upwardly by the water-pressure t-hus admitted, and this acts against the bottom of the ramplunger 3, so as to raise it to the upper part of its cylinder. As soon as the exhaust or discharge valve is opened to allow the water to escape from the upper part of the cylinder the pressure through the pipe 22 will be made effective to raise the plunger.

For convenience in construction and re-' pairs the head 14, which fits upon the end of the mandrel A, isbored out on the inner face and fits over a correspondingly-shaped projection formed on the outer end of the mandrel. Bolts pass through holes in the head to secure it to the end of the mandrel, but by reason of the socket and fitted projection the pressure which is brought upon the parts when the rivets are headed comes altogether IIO from the machine is supported upon these rollers and approximately in line with the mandrel, so that when a sufficient length of pipe has been formed by riveting up the shorter sections the pipe can be removed and another section built up. In order to prevent delay during this work, I may have two parallel lines of track,with carriages 26 situated at a short distance apart, and by suspending the riveting apparatus by means of a suspension yoke 28 and connections between said yoke and an overhead trolley 29 the latter traveling upon a transversely-disposed beam 30 may be alternately moved to stand in line with one of the carriages 26, so that a section may be riveted in line with that carriage while the workmen are putting another section together upon the other carriage. The first one being completed, it is only necessary to move the riveting apparatus by means of the trolley or carriage to stand in line with the other section, and the same operation is repeated as before. By another equivalent construction the riveting apparatus may remain stationary, and the two carriages 26 maybe mounted upon atransversely-movable table 31, so that by moving this table a sufiicient distance in either direction first one and then the other of thecarriages 26 will be brought into line with the riveting-machine, the latter in such case hanging stationary.

The mandrel and section A B hanging from their suspending mechanism 28 the front end tends to tilt a little downward, so that the outer end of the mandrel A normally hangs down toward the bottom of the pipe-section, which is fitted over it; but as soon as the pressure is brought upon the parts by the admission of water the mandrel rises up by reason of this pressure until the sleeve 19, which surrounds the head-former 18, will be raised up and brought into contact with the interior of the pipe in the line of which the rivet is being inserted. If the apparatus does not hang exactly right with relation to the rivethole, it is raised or lowered by means of a handle 32, fulcrumed to a suspended hanger or link 33 andhaving the opposite end connected with the upper partof the yoke B by a suitable link or equivalent connection. The operator by use of this handle can easily swing the suspended apparatus to bring it into line with the holes through which the rivet is to be passed, and this beingaccomplished with the other end he operates the admission-lever 9, so that water is admitted to the plunger-cylinder.

The swivel-jointed arm 11, which connects the water-pipes of this apparatus with the accumulator or other source of pressure allows any adjustment to suit the position and sizes of the pipe, and if the apparatus is to be transferred back and forward transversely to bring it into line with different pipes to be riveted a jointed or flexible section of pipe is fitted intermediate between the pipes of the riveting apparatus and the main stationary line through which the water is brought thereto.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hydraulic riveting and plate-closing apparatus consisting of a ram and its cylinder with pipes by which fluid under pressure is admitted thereto, a mandrel and a rivet-headforming tool opposed to the ram, a sleeve loosely surrounding the rivet-heading tool, hydraulic pressure plungers and a head transversely connecting the upper end thereof and supporting said sleeve and by which said sleeve is forced upwardly to form a support for the meeting pipe-sections whereby the pressure of the ram first closes the sections together, and afterward forces the support backwardly to allow the rivet to be headed.

2. A plate closing and riveting device, consisting of a fluid-pressure cylinder,a ram movable therein and a riveting-plunger actuated by said ram, a mandrel over which the pipesections extend, a head fitted to the end of the mandrel and formed with a plurality of parallel vertically-disposed cylinders with plungers movable therein, a ring or head con.- necting the upper ends of the'plungers transversely and a sleeve supported upon said ring or head, a head-forming stem intermediate of the cylinders and supported within said sleeve, means for applying hydraulic pressure to the plungers whereby the sleeve is held in position to receive and resist the first pressure upon the pipe-sections whereby they are closed together, said sleeve afterward yielding to allow all parts to advance until the inner end of the rivet contacts with and is upset by the action of the head-former within the sleeve.

3. A hydraulic riveting apparatus consisting of a suspended upper section and mandrel, a cylinder and ram carried by the upper section, a head fitted to the end of the mandrel and formed with a plurality of vertical parallel cylinders with plungers, a head or ring transversely connecting the upper ends of the plungers and a sleeve actuated thereby, a head-former intermediate of the cylinders and over which the sleeve is slidable, pipes by which fluid-pressure is transmitted simultaneously from a common source to the ram and to the sleeve-actuating plungers whereby a yielding pressure of less force is opposed to that of the ram, and the plates or pi pe-sections are first closed together, and the parts afterward moved by the superior pressure of the ram until the end of the rivet is headed by the head-former.

4. A plate closing and riveting device including an upper section and a mandrel united at the inner ends, heads detachably fitted to said section and mandrel and provided with riveting tools, fluid-pressure devices actuating said tools from a common source, one of said heads formed with a plurality of cylinders and connected plungers movable therein, and plate-closing means actuated by the plungers.

5. A hydraulic plate closing and riveting apparatus consisting of a suspended upper section having a hydraulic ram and riveting tool, a mandrel and a plate-closing hydraulic=pressure device carried thereby, and a rivet-heading tool concentric therewith, alever suspended between its ends having one end fulerumed and the other serving as a handle, by which the parts are brought into line with the rivet-holes of the pipe-sections, and

V a valve-actuating lever by which water is admitted to actuate the ram whereby the pipemandrel and parts carried thereby are movable in unison with the movements of the ram to bring them'into contact with the interior of the pipe whereby the plates or pipeseotions are first closed together, and the rivet introduced and the head formed thereon.

6. A hydraulic plate closing and riveting apparatus consisting of a mandrel and upper section united at one end and divergent out- Wardly therefrom, a ram-cylinder fixed to the ram, andthe other With the plate-closing cylend of the section and plate-closing pressure inders. 1o cylinders and plungers connected With the In Witness whereof I have hereunto set my mandrel, a swivel-jointed pipe through which hand.

Water from an accumulator or pressure ap- JOHN H. 'BATOHER. paratus is brought to the riveter, branches Witnesses: extending respectively along the upper sec- F. H. KIEFER, tion and mandrel, one connecting with the S. E. POPE. 

